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-rw-r--r--fs/9p/acl.c2
-rw-r--r--fs/binfmt_flat.c24
-rw-r--r--fs/btrfs/dev-replace.c29
-rw-r--r--fs/btrfs/reada.c7
-rw-r--r--fs/btrfs/volumes.c2
-rw-r--r--fs/btrfs/volumes.h5
-rw-r--r--fs/cifs/smb2maperror.c2
-rw-r--r--fs/ext4/crypto_policy.c2
-rw-r--r--fs/overlayfs/dir.c9
-rw-r--r--fs/overlayfs/inode.c13
-rw-r--r--fs/udf/inode.c93
11 files changed, 124 insertions, 64 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index c30c6ceac2c4..d02ee4026e32 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -282,7 +282,7 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
switch (handler->flags) {
case ACL_TYPE_ACCESS:
if (acl) {
- struct iattr iattr;
+ struct iattr iattr = { 0 };
struct posix_acl *old_acl = acl;
retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index f723cd3a455c..cc7bf84ef77c 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -808,9 +808,14 @@ err:
static int load_flat_shared_library(int id, struct lib_info *libs)
{
+ /*
+ * This is a fake bprm struct; only the members "buf", "file" and
+ * "filename" are actually used.
+ */
struct linux_binprm bprm;
int res;
char buf[16];
+ loff_t pos = 0;
memset(&bprm, 0, sizeof(bprm));
@@ -824,25 +829,10 @@ static int load_flat_shared_library(int id, struct lib_info *libs)
if (IS_ERR(bprm.file))
return res;
- bprm.cred = prepare_exec_creds();
- res = -ENOMEM;
- if (!bprm.cred)
- goto out;
-
- /* We don't really care about recalculating credentials at this point
- * as we're past the point of no return and are dealing with shared
- * libraries.
- */
- bprm.cred_prepared = 1;
-
- res = prepare_binprm(&bprm);
-
- if (!IS_ERR_VALUE(res))
+ res = kernel_read(bprm.file, pos, bprm.buf, BINPRM_BUF_SIZE);
+ if (res >= 0)
res = load_flat_file(&bprm, libs, id, NULL);
- abort_creds(bprm.cred);
-
-out:
allow_write_access(bprm.file);
fput(bprm.file);
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 81e5bc62e8e3..1414a99b3ab4 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -495,18 +495,27 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
}
btrfs_wait_ordered_roots(root->fs_info, -1);
- trans = btrfs_start_transaction(root, 0);
- if (IS_ERR(trans)) {
- mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
- return PTR_ERR(trans);
+ while (1) {
+ trans = btrfs_start_transaction(root, 0);
+ if (IS_ERR(trans)) {
+ mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
+ return PTR_ERR(trans);
+ }
+ ret = btrfs_commit_transaction(trans, root);
+ WARN_ON(ret);
+ mutex_lock(&uuid_mutex);
+ /* keep away write_all_supers() during the finishing procedure */
+ mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_lock(&root->fs_info->chunk_mutex);
+ if (src_device->has_pending_chunks) {
+ mutex_unlock(&root->fs_info->chunk_mutex);
+ mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+ mutex_unlock(&uuid_mutex);
+ } else {
+ break;
+ }
}
- ret = btrfs_commit_transaction(trans, root);
- WARN_ON(ret);
- mutex_lock(&uuid_mutex);
- /* keep away write_all_supers() during the finishing procedure */
- mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
- mutex_lock(&root->fs_info->chunk_mutex);
btrfs_dev_replace_lock(dev_replace);
dev_replace->replace_state =
scrub_ret ? BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 619f92963e27..f2af1f3d4aa8 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -762,16 +762,23 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
u64 total = 0;
int i;
+again:
do {
enqueued = 0;
+ mutex_lock(&fs_devices->device_list_mutex);
list_for_each_entry(device, &fs_devices->devices, dev_list) {
if (atomic_read(&device->reada_in_flight) <
MAX_IN_FLIGHT)
enqueued += reada_start_machine_dev(fs_info,
device);
}
+ mutex_unlock(&fs_devices->device_list_mutex);
total += enqueued;
} while (enqueued && total < 10000);
+ if (fs_devices->seed) {
+ fs_devices = fs_devices->seed;
+ goto again;
+ }
if (enqueued == 0)
return;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d1cca19b29d3..4eb7a6ba7e47 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4760,6 +4760,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
for (i = 0; i < map->num_stripes; i++) {
num_bytes = map->stripes[i].dev->bytes_used + stripe_size;
btrfs_device_set_bytes_used(map->stripes[i].dev, num_bytes);
+ map->stripes[i].dev->has_pending_chunks = true;
}
spin_lock(&extent_root->fs_info->free_chunk_lock);
@@ -7064,6 +7065,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
for (i = 0; i < map->num_stripes; i++) {
dev = map->stripes[i].dev;
dev->commit_bytes_used = dev->bytes_used;
+ dev->has_pending_chunks = false;
}
}
unlock_chunks(root);
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 3c651df420be..7feac2d9da56 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -62,6 +62,11 @@ struct btrfs_device {
spinlock_t io_lock ____cacheline_aligned;
int running_pending;
+ /* When true means this device has pending chunk alloc in
+ * current transaction. Protected by chunk_mutex.
+ */
+ bool has_pending_chunks;
+
/* regular prio bios */
struct btrfs_pending_bios pending_bios;
/* WRITE_SYNC bios */
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 7e93d5706bf6..4d0d4076de5a 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -455,7 +455,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_FILE_INVALID, -EIO, "STATUS_FILE_INVALID"},
{STATUS_ALLOTTED_SPACE_EXCEEDED, -EIO,
"STATUS_ALLOTTED_SPACE_EXCEEDED"},
- {STATUS_INSUFFICIENT_RESOURCES, -EREMOTEIO,
+ {STATUS_INSUFFICIENT_RESOURCES, -EAGAIN,
"STATUS_INSUFFICIENT_RESOURCES"},
{STATUS_DFS_EXIT_PATH_FOUND, -EIO, "STATUS_DFS_EXIT_PATH_FOUND"},
{STATUS_DEVICE_DATA_ERROR, -EIO, "STATUS_DEVICE_DATA_ERROR"},
diff --git a/fs/ext4/crypto_policy.c b/fs/ext4/crypto_policy.c
index e4f4fc4e56ab..77bd7bfb6329 100644
--- a/fs/ext4/crypto_policy.c
+++ b/fs/ext4/crypto_policy.c
@@ -111,6 +111,8 @@ int ext4_process_policy(const struct ext4_encryption_policy *policy,
if (!ext4_inode_has_encryption_context(inode)) {
if (!S_ISDIR(inode->i_mode))
return -EINVAL;
+ if (IS_DEADDIR(inode))
+ return -ENOENT;
if (!ext4_empty_dir(inode))
return -ENOTEMPTY;
return ext4_create_encryption_context_from_policy(inode,
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index d7d880f9495b..4cc40de38dff 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -415,8 +415,13 @@ static int ovl_create_or_link(struct dentry *dentry, int mode, dev_t rdev,
err = -ENOMEM;
override_cred = prepare_creds();
if (override_cred) {
- override_cred->fsuid = old_cred->fsuid;
- override_cred->fsgid = old_cred->fsgid;
+ const struct cred *our_cred;
+
+ our_cred = old_cred;
+ if (!our_cred)
+ our_cred = current_cred();
+ override_cred->fsuid = our_cred->fsuid;
+ override_cred->fsgid = our_cred->fsgid;
put_cred(override_creds(override_cred));
put_cred(override_cred);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 985a4cdae06d..9aff8178aa8c 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -9,6 +9,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/xattr.h>
#include "overlayfs.h"
@@ -91,6 +92,7 @@ int ovl_permission(struct inode *inode, int mask)
struct ovl_entry *oe;
struct dentry *alias = NULL;
struct inode *realinode;
+ const struct cred *old_cred;
struct dentry *realdentry;
bool is_upper;
int err;
@@ -143,7 +145,18 @@ int ovl_permission(struct inode *inode, int mask)
goto out_dput;
}
+ /*
+ * Check overlay inode with the creds of task and underlying inode
+ * with creds of mounter
+ */
+ err = generic_permission(inode, mask);
+ if (err)
+ goto out_dput;
+
+ old_cred = ovl_override_creds(inode->i_sb);
err = __inode_permission(realinode, mask);
+ revert_creds(old_cred);
+
out_dput:
dput(alias);
return err;
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 613193c6bb42..3876448ec0dc 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -479,13 +479,15 @@ static struct buffer_head *udf_getblk(struct inode *inode, long block,
return NULL;
}
-/* Extend the file by 'blocks' blocks, return the number of extents added */
+/* Extend the file with new blocks totaling 'new_block_bytes',
+ * return the number of extents added
+ */
static int udf_do_extend_file(struct inode *inode,
struct extent_position *last_pos,
struct kernel_long_ad *last_ext,
- sector_t blocks)
+ loff_t new_block_bytes)
{
- sector_t add;
+ uint32_t add;
int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
struct super_block *sb = inode->i_sb;
struct kernel_lb_addr prealloc_loc = {};
@@ -495,7 +497,7 @@ static int udf_do_extend_file(struct inode *inode,
/* The previous extent is fake and we should not extend by anything
* - there's nothing to do... */
- if (!blocks && fake)
+ if (!new_block_bytes && fake)
return 0;
iinfo = UDF_I(inode);
@@ -526,13 +528,12 @@ static int udf_do_extend_file(struct inode *inode,
/* Can we merge with the previous extent? */
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
EXT_NOT_RECORDED_NOT_ALLOCATED) {
- add = ((1 << 30) - sb->s_blocksize -
- (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>
- sb->s_blocksize_bits;
- if (add > blocks)
- add = blocks;
- blocks -= add;
- last_ext->extLength += add << sb->s_blocksize_bits;
+ add = (1 << 30) - sb->s_blocksize -
+ (last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
+ if (add > new_block_bytes)
+ add = new_block_bytes;
+ new_block_bytes -= add;
+ last_ext->extLength += add;
}
if (fake) {
@@ -544,28 +545,27 @@ static int udf_do_extend_file(struct inode *inode,
last_ext->extLength, 1);
/* Managed to do everything necessary? */
- if (!blocks)
+ if (!new_block_bytes)
goto out;
/* All further extents will be NOT_RECORDED_NOT_ALLOCATED */
last_ext->extLocation.logicalBlockNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
- add = (1 << (30-sb->s_blocksize_bits)) - 1;
- last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
- (add << sb->s_blocksize_bits);
+ add = (1 << 30) - sb->s_blocksize;
+ last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | add;
/* Create enough extents to cover the whole hole */
- while (blocks > add) {
- blocks -= add;
+ while (new_block_bytes > add) {
+ new_block_bytes -= add;
err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
last_ext->extLength, 1);
if (err)
return err;
count++;
}
- if (blocks) {
+ if (new_block_bytes) {
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
- (blocks << sb->s_blocksize_bits);
+ new_block_bytes;
err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
last_ext->extLength, 1);
if (err)
@@ -596,6 +596,24 @@ out:
return count;
}
+/* Extend the final block of the file to final_block_len bytes */
+static void udf_do_extend_final_block(struct inode *inode,
+ struct extent_position *last_pos,
+ struct kernel_long_ad *last_ext,
+ uint32_t final_block_len)
+{
+ struct super_block *sb = inode->i_sb;
+ uint32_t added_bytes;
+
+ added_bytes = final_block_len -
+ (last_ext->extLength & (sb->s_blocksize - 1));
+ last_ext->extLength += added_bytes;
+ UDF_I(inode)->i_lenExtents += added_bytes;
+
+ udf_write_aext(inode, last_pos, &last_ext->extLocation,
+ last_ext->extLength, 1);
+}
+
static int udf_extend_file(struct inode *inode, loff_t newsize)
{
@@ -605,10 +623,12 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
int8_t etype;
struct super_block *sb = inode->i_sb;
sector_t first_block = newsize >> sb->s_blocksize_bits, offset;
+ unsigned long partial_final_block;
int adsize;
struct udf_inode_info *iinfo = UDF_I(inode);
struct kernel_long_ad extent;
- int err;
+ int err = 0;
+ int within_final_block;
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
adsize = sizeof(struct short_ad);
@@ -618,18 +638,8 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
BUG();
etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset);
+ within_final_block = (etype != -1);
- /* File has extent covering the new size (could happen when extending
- * inside a block)? */
- if (etype != -1)
- return 0;
- if (newsize & (sb->s_blocksize - 1))
- offset++;
- /* Extended file just to the boundary of the last file block? */
- if (offset == 0)
- return 0;
-
- /* Truncate is extending the file by 'offset' blocks */
if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) ||
(epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
/* File has no extents at all or has empty last
@@ -643,7 +653,22 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
&extent.extLength, 0);
extent.extLength |= etype << 30;
}
- err = udf_do_extend_file(inode, &epos, &extent, offset);
+
+ partial_final_block = newsize & (sb->s_blocksize - 1);
+
+ /* File has extent covering the new size (could happen when extending
+ * inside a block)?
+ */
+ if (within_final_block) {
+ /* Extending file within the last file block */
+ udf_do_extend_final_block(inode, &epos, &extent,
+ partial_final_block);
+ } else {
+ loff_t add = ((loff_t)offset << sb->s_blocksize_bits) |
+ partial_final_block;
+ err = udf_do_extend_file(inode, &epos, &extent, add);
+ }
+
if (err < 0)
goto out;
err = 0;
@@ -748,6 +773,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
/* Are we beyond EOF? */
if (etype == -1) {
int ret;
+ loff_t hole_len;
isBeyondEOF = true;
if (count) {
if (c)
@@ -763,7 +789,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
startnum = (offset > 0);
}
/* Create extents for the hole between EOF and offset */
- ret = udf_do_extend_file(inode, &prev_epos, laarr, offset);
+ hole_len = (loff_t)offset << inode->i_blkbits;
+ ret = udf_do_extend_file(inode, &prev_epos, laarr, hole_len);
if (ret < 0) {
brelse(prev_epos.bh);
brelse(cur_epos.bh);
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-03 23:42:47 +0000